linux-toradex.git/net/ceph/osd_client.c, branch v3.9-rc2

libceph: update osd request/reply encoding

2013-02-26T23:02:50+00:00

Use the new version of the encoding for osd requests and replies.  In the
process, update the way we are tracking request ops and reply lengths and
results in the struct ceph_osd_request.  Update the rbd and fs/ceph users
appropriately.

The main changes are:
 - we keep pointers into the request memory for fields we need to update
   each time the request is sent out over the wire
 - we keep information about the result in an array in the request struct
   where the users can easily get at it.

Signed-off-by: Sage Weil 
Reviewed-by: Alex Elder

libceph: calculate placement based on the internal data types

2013-02-26T23:02:37+00:00

Instead of using the old ceph_object_layout struct, update our internal
ceph_calc_object_layout method to use the ceph_pg type.  This allows us to
pass the full 32-bit precision of the pgid.seed to the callers.  It also
allows some callers to avoid reaching into the request structures for the
struct ceph_object_layout fields.

Signed-off-by: Sage Weil 
Reviewed-by: Alex Elder

libceph: decode into cpu-native ceph_pg type

2013-02-26T23:01:57+00:00

Always decode data into our cpu-native ceph_pg type that has the correct
field widths.  Limit any remaining uses of ceph_pg_v1 to dealing with the
legacy protocol.

Signed-off-by: Sage Weil 
Reviewed-by: Alex Elder

libceph: rename ceph_pg -> ceph_pg_v1

2013-02-26T23:01:41+00:00

Rename the old version this type to distinguish it from the new version.

Signed-off-by: Sage Weil 
Reviewed-by: Alex Elder

libceph: allow STAT osd operations

2013-02-20T01:14:03+00:00

Add support for CEPH_OSD_OP_STAT operations in the osd client
and in rbd.

This operation sends no data to the osd; everything required is
encoded in identity of the target object.

The result will be ENOENT if the object doesn't exist.  If it does
exist and no other error occurs the server returns the size and last
modification time of the target object as output data (in little
endian format).  The size is a 64 bit unsigned and the time is
ceph_timespec structure (two unsigned 32-bit integers, representing
a seconds and nanoseconds value).

This resolves:
    http://tracker.ceph.com/issues/4007

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin

libceph: simplify data length calculation

2013-02-20T01:14:02+00:00

Simplify the way the data length recorded in a message header is
calculated in ceph_osdc_build_request().

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin

libceph: remove dead code in osd_req_encode_op()

2013-02-18T18:20:26+00:00

In osd_req_encode_op() there are a few cases that handle osd
opcodes that are never used in the kernel.  The presence of
this code gives the impression it's correct (which really can't
be assumed), and may impose some unnecessary restrictions on
some upcoming refactoring of this code.

So delete this effectively dead code, and report uses of the
previously handled cases as unsupported.

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin

libceph: report defined but unsupported osd ops

2013-02-18T18:20:22+00:00

If osd_req_encode_op() is given any opcode it doesn't recognize
it reports an error.

This patch fleshes out that routine to distinguish between
well-defined but unsupported values and values that are simply
bogus.

This and the next commit are related to:
    http://tracker.ceph.com/issues/4126

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin

libceph: kill ceph_osdc_wait_event()

2013-02-18T18:20:05+00:00

There are no actual users of ceph_osdc_wait_event().  This would
have been one-shot events, but we no longer support those so just
get rid of this function.

Since this leaves nothing else that waits for the completion of an
event, we can get rid of the completion in a struct ceph_osd_event.

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin

libceph: kill ceph_osdc_create_event() "one_shot" parameter

2013-02-18T18:20:00+00:00

There is only one caller of ceph_osdc_create_event(), and it
provides 0 as its "one_shot" argument.  Get rid of that argument and
just use 0 in its place.

Replace the code in handle_watch_notify() that executes if one_shot
is nonzero in the event with a BUG_ON() call.

While modifying "osd_client.c", give handle_watch_notify() static
scope.

Signed-off-by: Alex Elder 
Reviewed-by: Josh Durgin